body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
}

.alert {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 3px;
}

.alert-info {
    background-color: #d9edf7;
    color: #31708f;
}

.alert-danger {
    background-color: #f2dede;
    color: #a94442;
}

.alert-success {
    background-color: #dff0d8;
    color: #3c763d;
}

input[type="text"],
input[type="password"] {
    width: 90%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

input[type="submit"] {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #0056b3;
}
